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3 years ago

So how do u add fractions?

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

8 0

Answer:

magic

Step-by-step explanation:

Make sure the bottom number are the same

Add the top numbers,put that answer over the denominator

Simplify the fractions if needed

Alecsey [184]3 years ago

3 0

Answer:

Cross-multiply the two fractions and add the results together to get the numerator of the answer.

Suppose you want to add the fractions 1/3 and 2/5. To get the numerator of the answer, cross-multiply. In other words, multiply the numerator of each fraction by the denominator of the other:

1/3 and 2/5

5+1=6 3+2=5

Add the results to get the numerator (top) of the answer:

5 + 6 = 11

Multiply the two denominators together to get the denominator of the answer.

To get the denominator (bottom), just multiply the denominators of the two fractions:

1/3 and 2/5

3x5 = 15

The denominator of the answer is 15.

So the final answer is 11/15

HOPE THIS HELPS!

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Some wanna look at this and help me ?

Vika [28.1K]

21x+1+14x+4=180
35x+5=180
35x=175
X=5
21(5)+1
105+1
Answer

4 0

3 years ago

What is the slope / rate of change for 2, 5 and -3, 7

Nady [450]

Answer:

$\displaystyle m=\frac{-2}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS 

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (2, 5)

Point (-3, 7)

Step 2: Identify

x₁ = 2, y₁ = 5

x₂ = -3, y₂ = 7

Step 3: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{7-5}{-3-2}$
[Slope] [Fraction] Subtract: $\displaystyle m=\frac{2}{-5}$
[Slope] [Fraction] Rewrite: $\displaystyle m=\frac{-2}{5}$

4 0

3 years ago

7x + 2y = 24 8x + 2y = 30

bagirrra123 [75]

(8x + 2y) - (7x + 2y) = 30 - 24

X = 6

5 0

3 years ago

Read 2 more answers

Answer as many as you can please (write in slope-intercept form)

RoseWind [281]

Answer: See below

Step-by-step explanation:

For the first one, we are already given our slope. All we need to do is find the y-intercept, b.

y=-2x+b

6=-2(-3)+b

6=6+b

b=0

The slope-intercept form is y=-2x.

For the second one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{1-13}{3-(-6)} =\frac{-12}{9}$

Now that we have our slope, we can plug it into our slope-intercept form to solve for b.

$y=-\frac{12}{9} x+b$

$3=-\frac{12}{9}(1)+b$

$-\frac{9}{4} =b$

The slope-intercept form is $y=-\frac{12}{9} -\frac{9}{4}$ .

For the third one, we are already given the slope, so all we have to do is find b.

$y=-\frac{1}{2}x +b$

$-7=-\frac{1}{2} (-4)+b$

$-7=2+b$

$-9=b$

The slope-intercept form is $y=-\frac{1}{2} x-9$ .

For the last one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{-8-2}{3-1}=\frac{-10}{2} =-5$

Now that we have our slope, we can plug it into our slope-intercept form and find b.

$y=-5x+b$

$2=-5(1)+b$

$2=-5+b$

$7=b$

Our slope-intercept form is $y=-5x+7$ .

4 0

4 years ago

What are the measures of angle b e c and angle a b e in the figure shown? (30 points.)

koban [17]

Angle bec= 20 and angle abe =160

8 0

2 years ago

Read 2 more answers

So how do u add fractions?​

So how do u add fractions?